<template>
  <div>
    <template v-for="(item, index) in options">
      <template v-if="values.includes(item.value)">
        <span
          v-if="
            (item.elTagType === 'default' || item.elTagType === '') &&
            (item.elTagClass === '' || item.elTagClass == null)
          "
          :key="item.value"
          :index="index"
          :class="item.elTagClass"
        >
          {{ item.label + " " }}
        </span>
        <el-tag
          v-else
          :disable-transitions="true"
          :key="item.value + ''"
          :index="index"
          :type="
            item.elTagType === 'primary' || item.elTagType === 'default'
              ? ''
              : item.elTagType
          "
          :class="item.elTagClass"
        >
          {{ item.label + " " }}
        </el-tag>
      </template>
    </template>
    <template v-if="unmatch && showValue">
      {{ unmatchArray }}
    </template>
  </div>
</template>

<script setup>
const props = defineProps({
  // 数据
  options: {
    type: Array,
    default: null,
  },
  // 当前的值
  value: [Number, String, Array],
  // 当未找到匹配的数据时，显示value
  showValue: true,
  separator: ",",
});
const values = computed(() => {
  if (
    props.value === "" ||
    props.value === null ||
    typeof props.value === "undefined"
  )
    return [];
  return Array.isArray(props.value)
    ? props.value.map((item) => "" + item)
    : String(props.value).split(props.separator);
});

const unmatch = computed(() => {
  if (
    props.options?.length == 0 ||
    props.value === "" ||
    props.value === null ||
    typeof props.value === "undefined"
  )
    return false;
  // 传入值为非数组
  values.value.forEach((item) => {
    if (!props.options.some((v) => v.value === item)) {
      return true; // 如果有未匹配项，将标志设置为true
    }
  });
  return false; // 返回标志的值
});

const unmatchArray = computed(() => {
  // 记录未匹配的项
  const itemUnmatchArray = [];
  if (
    props.value !== "" &&
    props.value !== null &&
    typeof props.value !== "undefined"
  ) {
    values.value.forEach((item) => {
      if (!props.options.some((v) => v.value === item)) {
        itemUnmatchArray.push(item);
      }
    });
  }
  // 没有value不显示
  return handleArray(itemUnmatchArray);
});

const handleArray = (array) => {
  if (array.length === 0) return "";
  return array.reduce((pre, cur) => {
    return pre + " " + cur;
  });
};
</script>

<style scoped>
.el-tag + .el-tag {
  margin-left: 10px;
}
</style>
